Type-writing machine.



Patented J une 27 f' 1916. A2 SHEETS-sneu I.

By l Afro/Mfrs 0'. PE'TEVRMANN. TYPE WRITING MACHINE. APPLICATION FILEDIIIAII. I6. 1915.

' o. P ETEIIMAIINL vTYPE WRITING MACIIINE. I APPLICATION FILED Imi. le.Ism.A

L1 89,171 Patented June 2.7, 1916.

2 SHEETS-SHEET 2- III/m5885615 ed K a s'rarns aan OTTO PETERMANN, 0FGROTON, NEW YORK, ASSiC-NOR TO CORONA TYPEJVRITER COMANY, INC', ACORPORATION OF NEW YORK.

TYPE-WRITING MACHINE.

Specication of Letters Patent. i

Applicatipn filed March 16, 1915. Serial No. 14,649.

T0 all whom it may concern Be it known that I, OTTO PETERMANN, a citizenof the United States, and a resident of' Groton, county ot' Tompkins,and State of New York, have invented certain new and useful Improvementsin Type-Writing Machines, of which the following is a full, clear, andexactdescription.

This invention relates more particularly to the universal bar action ofvisible typewriting machines, y

In typewriting machines, it is desirable that a light elastic touch besecured, and it is further desirable that the construction be such thatas little noise by the operation of the keys be made as possible. Wherethe keys are operated vand strike suddenly against the universal bar andthe resistance of the mechanism operated thereby is suddenly thrown uponthe keys or key-operated levers, the resistance offered is not only hardon the touch but the impact of the keys in striking suddenly against theuniversal bar requiring sudden movement of the different parts, producesconsiderable noise.

@ne otu the principal objects of the present invention is tb overcomethe objections 'referred to and to provide a universal bar action inwhich a. light and elastic touch is 'secured and in which the partsoperated by the universal bar have an acceleratedmovement of such acharacter that the key-oper ated levers during a portion of theirmovement simply move thel universal bar without any other part of themechanism, and during thecontinued depression ofthe keys graduallyincrease the movement of such parts so that atthe final part et themovement of any one of the key-operated levers, the greatest movement isgiven to the parts operated bythe universal bar.

Another object of the invention is to provide a construction 4whereinthe universal bar is normally held at a distance away from thekey-operated levers and in which the.

, vide means whereby the universal bar has its position determined bythe,position of the spacing lever or levers; and to `provide means wherebythe 'ai-reefi movement of thecelerated movement to the escapement andribbon vibrator operating rocking frame or element.

.A further object or' the invention is to provide a: simple andeflicient construction of luniversal bar action which may be readilymade and assembled.

y A still further object of the invention is to provide a universal baraction which is particularly adapted for ioldable typewriting machinesin which the platen carriage and keys are brought into close relation soas to make'the machine compact for transportation or other purposes.

lith these and other objects in view, the invention will be hereinaftermore particularly described with reference to the accompanying drawings,which form a part of this speciiication, and will then be pointed out inthe claims at the end of the description.

ln the drawings, Figure 1 is a longitudinal section ot' one form ofmachine embodying my invention. mentary perspective view oi' theprincipal parts of the universal bar action; and Fig.

Patented 'J une 27,1916.

Fig. 2 is a trag- 3 is a sectional plan view with'parts broken away,the. section# being taken through the more particularly to a. specialform of folding typewriter in which the carriage is folded forward overthe keys, it will be under stood that the invention or parts-thereof maybe employedin connection with writing machines of various kinds.

The frame 10 has the sides 11 connected at the front end by a transversebar 12 and at the rear by an integral transverse bar or plate 13. Heldto the sides 11 are the fulcrum plates or mem ers 14 and 1e. Theselplates er members have openings 15a through which. pass the body ofscrews 15b, the ends of which enter threaded openings in the ends of thetule/rum rods 16. The tulcrum rods 16 extend transversely of the machineand at their ends abut against the platealel and 15,

the latter' being clamped between thev ends of the rods 16 and sides 11of the frame, though instead of this method of securing thes partstogether any other suitable means may e employed. A plurality ofkey-operated levers 17 are piyotally held to the transverse fulcrum rods16 and are arranged in .chine compact.

groups or banks in the usual way, the banks of keys corresponding innumber toI the transverse rods 16 andare so positioned that asubstantially uniform touch is secured. Each key-lever has a `fulcrumportion 1S to span one of the transverse rods 1G and below the fulcrumportion is" the body 19. Each key-lever body has an operating key 2Oforming a part of a standard or universal key.- board and each lever hasan inner portion 21 from which projects upwardly a part 22. To the part22 is connected a link 23, the latter being connected at. its upper endto one of the type-bars 21. The type-bars are pivoted to a segment or tohangersand each has a plurality of characters, either two or three type,according to the' shift movements, and as each key-lever is depressed,its coperating type-bar has the type thereon forced upwardlv andrearwardly against a platen The platen 25 is mounted upon a carriage 26which is adapted to move along a bed 27. The bed 2T is held to arms 28which are pivotcd, at 29, to other arms so that the carriage and bed maybe folded forward over the keys or forward thereof to make the ma- Thecarriage has a rack 30 adapted to be engaged by dogs 31 and 3Q. thelatter being mounted upon a carrier 33 so that when the said carrier ismoved. the

dogs will operate in such a way as to permit letter-spacing` .movementto Abe given to the carriage, said carriage being normally. held `undertension of a spring vdrum 34. The

arms 28 are held to vertically movable. posts Fig. 3, and these postsare connected by a transversely extending rod 3G. An arm or arms 37 areconnected to the rod 36 and :iid arm or arms are held to a transverselyextending rod or shaft 3S Jforming a part of the shift movenient toadapt the posts 35 together with the'carriage and platen to be 'ivenshift movements. Except as to the iulcrum plates le and 15 and themounting of the transverse fulcrum rods 16, the parts thus far describedare old and such parts may be of the usual or of any preferredconstruction. I

A universal bar frame 39 substantially U- shaped in plan so as to form alight structure has side arms 40 which are held to a transverselyextending rod 41. The rod 41 forms pivoting means for the frame 39 andhas its ends beyond the side arms 40 held in ears or lugs atl of thefulcrum plates 11 and 15. The Varms 40 Jform integral extensions of thetransversely arranged universal bar' distance before the tongue engagesthe uni-A versal bar 42 of the universal bar frame 39. rl`he universalbar 42 normally rests against the inner end l1 of the space-bar lever45. The space-bar lever has a finger portion or key 4G 'to which it isconnected at one end and at the other end of said key or bar 4G isconnected an arm 47. The arm 47 and the lever -15 have fulcrum portions4S so as to be suspended from a transversely extending fulerum rod 49,the latter being held to the sides of the vmachine frame by pivot screws49 as shown in Fig. 3. The space-bar lever 45 is held in its normalposition by a spring 50 one end of which is secured to the lever 45 andthe other end to av transversely extending bar '51, the ends of whichare held in slots in the downwardly and forwardly,

extending portions of the fulcrum plates or members 14 and 15, therebeing a spring 51 for each key-lever 17 one end of which. is held tosaidkey-lever and the other end to said transverse bar 51 tending normlly4to keep the key-levers in their normal position as usual. The space-barlever 45 normally rests upon the transverse rod 3S and has its inner endpositioned to limit the pivotal downward movelnent of the universal barlrame 39, the bar 42 being normally held against the inner end of thespace-bar lever 45 by springs one end of which are held to the universalbar and their other ends to pendent'parts or .arms 56 on the fulcrummembers 14 and 15, there being a spring at each side of the machine.

The universal bar :trame 39 has its side arms 40 provided with upwardlyextending lugs or projections 57. These lugs or projections areconnected by detachable or other links 58 o1- any suitable constructionto the lower ends of levers 59. The levers .'39 are pivoted to the rearposts or brackets (3 0 for the slides or posts 35 or otherwise and attheir upper ends said levers are connected by a transversely ext-endingrod 61. This rod (31 extends across the machine and passes throughvertical slots 6'2 in the rocker frame GP. The rocker frame comprisestwo vertically extending arms G4 which are pivotally held to thetransversely extending rod 3G and said arms 64 are connected by anintegral transversely extending bar 65. This bar carries a tappet foractuating the dog carrier and also is adapted to operate the parts ofthe ribbon mechanism. The transverse bar (35 has a rearwardly extendingportion GG which has a hooked end 67. This end G7 is adapted to engageover a transversely extending rod G8 which con- The universal bar 42 Athe purpose of the rod and hooked portion 6T beingto limit the forwardrocking movement o'f therocking frame ('33, the latter being restored toits normal position by means of a spring, not shown, or otherwise.

It will be evident that by providing the universal bar frame which isconnected. to the levers 59 arranged on opposite sides of the machine,which are themselves connected together by a transversely extendingrod,a uniform movement during the action of the universal bar is imparted tothe rocking frame 63. It will be further evident that the parts when inthe normal position or that shown in Fig. 1, have both pivots of thelink 58 and the pivot rod 41 for the universal .bar frame insubstantially a straight line and a toggle-joint connection is madebetween the levers 59 and universal bar. If one of the key-levers 17 isde pressed, the As aid lever will lhave a movement until the tongue 48engages the transversely extending universal bar 42 of the universal-barframe without actuating said bar.

parts owing tothe position of the pivots of the link and the universalbar, the first c quarter will give. little or no movement to the levers'59. During the next quarter movement of the key a very littleadditional operated thereby and by reason of the light universal har.

construction of the-universal bar substantially no resistance is offeredto the movement of the key-levers sothat there is no shock andconsequently less noise is made by the impact of the key-lever againstsaid it will be evidentfurther that the parts when constructed as shownmay be readily made and assembled and that the whole universal bar framecan be easily assembled in the machine by simply spreading the offsetears 41a of the fulcrum plates 14 and 15 slightly apart Which allows theouter Vend of the transverse rod 41 carried 4by the arms 40 of theuniversal bar frame 39 to enter the openings in the offset ears 42.. Theparts, therefore," as herein described discloses an effective universalbar action and While only one Way of carrying If, the restof themovementof the' key be divided into substantially four equal the invention intoefi'ect is 'shown herein, it

will be understood that some of the parts may be changed or otherssubstituted therefor without departing from the spirit of the invention.

Having thus described my invention, I claim as new and desire to secureby Letters Patent 1. In a typewriting machine, the combination of arocking frame, means operated thereby, a transversely extending rod,levers connected to said transversely extending rod adapted to move therocking frame, links connected to said levers, a pivotally helduniversal bar frame having parts to which the links are connected, thepivot of the universal bar frame and the points of connection of thelinks with said universal bar frame and the levers being normally insubstantially a straight line, springs normally forcing the universalbar frame in one direction, spacing means adapted `to limit the downwardpivotal movement of the universal bar frame, and keylevers having theengaging portion thereof located under and normally at a distance fromthe universal bar frame and adapted during the depression thereof toelevate said frame and impart an accelerated movement to said levers Ina typewriting machine, the combination of a rocking frame adapted to.operate other mechanism, levers operatively connected to move therocking frame, links con nected to said levers, a pivotally held universal bar having parts to which the links are connected, the pivot ofthe universal bar and the points of connection of the links with saiduniversal bar and thelevers being normally in substantially a straightline, means normally forcing the universal bar in one direction, spacingmeans adapted t0 limit the downward movement of the universal bar, andkey-operated levers having the engaging portion thereof located underand normally at ya distance from` the uni- -to m ove the rockingelement,links connected to said levers, a pivotally held and horizontallyarranged universal bar frame having .parts to which the links areconnected, the

pivot of the universal 'bar frame and the points of connection of thelinks with saidl universal bar frame and the levers being normally insubstantially a straight line, and key-operated levers havingtheengaging portion thereof located under and adapted sis f during thedepression thereof to elevate the` `universal bar frame 'and impart anacceler- 13o.

ated movement to said levers and rocking element.

l. In a typewriting machine, the combination of levers, .means operatedby said levers, links connected to said levers, a horizontally arrangedand pivotally held universal bar having parts to which the links areconnected, the pivot of the universal bar and the points of connectionof the links with said universal bar and the levers being normally insubstantially a straight line, spacing means adapted to'limit thedownward movement of the universal bar,l andl key-operated leversadapted during the depression thereof to elevate the universal bar andlimpartan accelerated movement to said levers.

5. In a typewriting machine, the combination of a rocking frame, leversoperatively connected to move the rocking Aframe, .links connected tosaid levers, a horizontally arrangedl and pivotally held universal barframe having parts to which the links are connected, spacing 'meansadapted to limit the downward movement of the universal bar frame, andkey-levers having the engaging portion thereof located under theuniversal bar frame and adapted during the depression thereof to elevatea part of said frame.

6. In a typewriting machine, the combination of a universal bar,key-operated le.

vers for moving said bar, and an actuating element operatively connectedto the universal bar and having an accelerated movement in a generaldirection opposite to theL movement of said bar.

7. In a typewriting machine, the combination of a universal bar,key-operated levers for operating said bar, a pivotally held actuatingelement, and a substantially togglejoint connection between theuniversal bar and said element adapted to impart anaccelerated movementto the element.

8. In a typewriting machine, the combination of a universal bar,key-operated levers for operating said bar, an actuated clement, andconnections between the universal bar and the actuated elementcomprising al plurality of pivotally connected parts so connected thatthe actuated element is given an accelerated movement in a generaldirection opposite to the movement of said bar.

9. In a typewriting machine, the combination of a. universal bar,key-operated levers for operating said bar, an actuated element, andsubstantially toggle-joint connections between the universal bar and theactuated element for imparting an accelerated movement to said element.

10. In typewriting machines, the combi- `nation of a pivotally helduniversal bar, keyeperated levers for operating:rv said bar, an

actuated element, vrind connections includingI substantially atoggle-joint between the universal bar and the actuated element, saidconnections being normally in a straight line and adapted to impart anaccelerated movevment to said element in a direction opposite to themovement of said bar. y

11, In a typewriting machine, the combination of a pivotally helduniversal bar, key operated levers directly engaging and moving saidbar, an actuated element, and connections between the universal bar andthe actuated element comprising a link-a-nd-lever connection pivotallyheld together kand having their pivots in substantially a straight linewith the pivot of the universal bar and imparting an acceleratedmovement t0 said actuated element.

.including a toggle-joint between 'the universal bar and the elementwhereby anaccelerated'movement is imparted t0 said element.

14. In a typewriting machine, the combination of a universal bar,key-levers located under and adapted to move said universal bar, meansfor limiting the movement of the universal bar in one direction, a rod,and means including a. toggle-joint operatively connected to tlieuniversal bar and to the rod ,to adapt said rod to remain substltiallyinactive during the initial movement of said bar and then graduallybecoming active and increasing its speed duringr thel remainingcontinued movement of said bar.

15. In a typewriting machine, the com bination of pivotally held means,-key-levers, a pivotally held universal bar, and connections includingtoggle-joints between the universal bar and pivotally held means forimparting Van accelerated movement to said means. l

16. In a typewriting' machine, the combination of key-levers, auniversal bar supported over said'key-levers and ata distance above thesame when in a normal po- .l sition, pivotally held levers, meansoperated 'by said levers, and links and forming a toggle-jointconnection between the levers and the universal bar 1n such a Way as tohave an accelerated movement imparted to said levers.

17. In a typewriting machine, the combination of key-levers, aVpivotally held universal bar supported over said key-levers and at adistance above the same when in a normal position, vertically larrangedand pivotally held levers, means operated by said levers, and, linksconnecting the levers A to the universal bar and having suchconneclevers adapted to move said frame, a piv-4 oted universal bar,key-levers adapted to operate said universal bar, lparts projectingupward Yfrom said universal bar, and

links connecting such parts ot' the universal f bar to the levers atpoints in substantially a straight'line ,with the pivots of theuniversal bar. y

Q0. ln a typewriting machine, the combif nation of a rocking frame, pivotally held levers adapted to move said trame, a universal bar frame,key-levers located under and normally at a distance from said frame andl adapted to operate said universal bar frame,

parts projecting upward from said universal bar. frame, and horizontallyarranged and rearwardly extending links connecting such parts of theuniversal bar to the levers at points in substantially a straight linewith the pivots ot the universal bar for the purpose set forth.

21. ln a typewriting machine, the combination of a rocking element,- apivotally heldlever adapted to move said element, a

universal bar, key-leversadapted to operate said universal bar, and alink connecting the universal. bar to the lever at points insubstantially a straight line with the pivots of the universalbar,

In a. typewriting machine in which K' the type-bars have an upward andrearward movement, the combination of a pivotally held rockingl trame,pivotally held levers, a rod connecting one end of the levers and eX-tending;` transversely of the machine and adapterl to rock said frame, auniversal bar frame substantially U-shaped in forni, a rod to which theuniversal bar frame is held so as to have an up-and-down pivotal movement, key-levers 'having engaging portions underlying said universal barframe and normally at a. distance therefrom,'springs normally forcingthe universal bar toward *having engaging portions underlying said whichthe universal bar frame is held so as luniversal bar frame.

the key-levers, and links connecting the levers and universal bar trameand having their connections with said levers and universal bar insubstantially a straight line with the pivot ot' said-bar. l

Q3. In a typewriting machine in which the type-bars have an upwardandrearward movement, the combination of a pivotally hel'd rockingframe,pivotally held levers connected to rock said frame, a horizontallyarranged universal bar trame substantially U-shaped in form, a rodtowhich the universal bar frame is heldso 'as to have an upand-downpivotal movement, key-levers universal bar frame and adapted to engagethe same, means normally forcing the universal bar frame toward the key-levers, means tor .limiting'the downward movement of said bar, andlinks connecting the levers Yg5 and universal bar.

24. In a typewriting machine in which the type-bars have an upward andrearward vmovement, the combination of a pivotally held rocking frame,pivotally held'levers, a rod connecting one end of the levers extendingtransversely of the machine and adapted to rock said frame, Aa universalbar frame substantially U-shaped in form, 4a rod to to have anup-and-down pivotal movement, key-levers having engagingportions'underlying said universal bar trame'and adapted to operate thesame, means normally torcing the universal bar frame toward thekeylevers, and links connecting the levers and universal bar.

25. In a typewriting machine in which the type-bars have an upward andrearward movement, the combination ot'a pivotally 105 held rockingframe, pivotally held levers connected to rock said frame, a pivotallyheld universal bar trame substantially U- Y shaped in form, key-levershaving engagingl portions underlying said universal bar trame andnormally at a distance therefrom, springs normally `forcing theuniversal bar frame toward the key-levers, and rearwardly extendinglinks connecting the levers and engage said rod to limit the movementOli said element in one direction, escapem'enl 130 mechanism operated bythe rocking element,

and means for operating said rocking ele-k move along said support, arocking element,`

key-operated levers, a pivotally held universal bar, and fulerumsupporting plates to 4which the universal bar is detachably held.

30. In a typewriting machine, 'the combination of a supporting frame, acarriage adapted to move along-said frame, a movable element,key-operated levers, a, pivotally held universal bar, and ulcrumsupporting plates to which the universal bar is detachably held.

3l. In a typewriting machine, the combination of fulcruln supportingplates, a machine frame to which the plates are held, rods extendingtransversely of the machine between the plates, key-levers suspendedfrom said rods in sets, downwardly and for wardly extending portionsforming a part of said plates, a bar held in said portions, springsconnected to said bar and to the key-levers, a universal bar pivotallyheld between said fulcrum, supporting plates, springs connected to partsof said plates and to the universal bar, a rocking element, and

means connecting said universal bar to said rocking element.

32. In a typewriting machine, the combination of ulcrum supportingplates, a machine frame to which the plates are held, reds extendingtransversely of the machine between the "plates, key-levers suspendedfrom said rods in sets, downwardly and forwardly extending por'tionsforming a part ofsaid plates, said portions having slots in theirforward ends, a bar held in the slots of said ends, a universal barpivotally held between said fulcrum supporting plates, a rockingelement, and means connecting said universal bar to said rockingelement.

33. In a typewriting machine, the combination of fulcruin supportingplates, rods extending transversely of the machine between the plates,key-levers suspended from said rods in sets, downwardly and forwardlyextending portions forming a part of said plates, a bar held in saidportions, springs connected to said bar and to the key-levers, auniversal bar pivotally held between said fulcruin supporting plates,and means operated by the universal bai'.

34. In a typewriting machine, the combination of fulcruni supportingplates, keylevers supported between said plates, downwardly andforwardly extending portions forming a part of said plates, a bar heldin said portions, springs connected to said bar and to the key-levers, auniversal bar pivotallynheld between said fulcruln supporting plates,and means operated by said bar.

In a typewriting machine, the combination of fulcrum supporting plates,keylevers supported between said plates, downwardly and forwardlyextending portions forming a part of said plates, a bar held in saidportions, springs connected to said bar and to the key-levers, a.universal bar pivotally held between said fulcrum supporting plates,springs connected to parts of said plates and to the universal bar, andlmeans operated by said universal bar.

This specification signed and witnessed this tenth day of March, A. D.1915.v

C. T. Yarns, R. BAs'roN

